Functions

A function is a rule which indicates an operation to perform.

Graph Transformations

1. y = f(x) + a is the same as the graph y = f(x), shifted upwards by a units.
2. y = f(x - a) shifts the graph a units to the right.
3. y = f(ax) is a stretch with scale factor 1/a parallel to the x-axis.
4. y = a.f(x) is a stretch with scale factor a parallel to the y-axis.                                                                                                                                                                                NEXT